![background image](http://html1.mh-extra.com/html/carrier/69nt40-489-100-series/69nt40-489-100-series_operation-and-service-manual_2563838109.webp)
85
T-305
80
100
120
140
160
180
200
220
240
260
280
300
320
60
70
80
90
100
110
120
psig
(43.3)
(37.8)
(32.2)
(26.7)
(21.1)
(15.6)
_
F
(
_
C)
(Bar)
(5.5)
(6.9)
(8.3)
(9.7)
(11.0)
(12.4)
(13.8)
(15.2)
(16.6)
(19.3)
(20.7)
(22.0)
35
_
F (1.7
_
C)
Box
(17.9)
Note: Curves to be used as troubleshooting guide only for model series 69NT40 with
fresh air makeup vent closed, unit powered on 460 VAC/60hz and SMV 100% open.
Compressor Discharge Pressure Versus Ambient Air Temperature at Stable Box Temperature
80
100
120
140
160
180
200
220
240
260
280
300
320
60
70
80
90
100
110
120
Ambient Air Temperature
psig
(48.9)
(43.3)
(37.8)
(32.2)
(26.7)
(21.1)
(15.6)
(Bar)
0
_
F (--17.8
_
C)
Box
(5.5)
(6.9)
(8.3)
(9.7)
(11.0)
(12.4)
(13.8)
(15.2)
(16.6)
(19.3)
(20.7)
(22.0)
(17.9)
Ambient Air Temperature
_
F
(
_
C)
Figure 54. R-134a Compressor Pressure and Motor Current Curves Versus Ambient Temperature
(Sheet 1 of 2)
Summary of Contents for 69NT40-489-100 Series
Page 2: ......
Page 4: ......
Page 14: ...Safety 10 T 305...
Page 28: ...4 T 305...
Page 40: ...16 T 305...
Page 50: ...26 T 305 Figure 12 Standard Configuration Report...
Page 112: ...88 T 305...
Page 164: ...140 T 305...
Page 167: ...143 T 305 Based on drawings 62 10526 Rev and 62 10736 Rev Figure 90 Electrical Schematic CA...
Page 174: ...150 T 305...